python读取日志并写入新文件

Question

即时通讯使用以下代码读取文件，并写一些包含某些单词的行

with open('access.log') as f:
    for line in f:
         logdate = datetime.strptime(line.split(',')[0], '%Y-%m-%d %H:%M:%S')
         if logdate >= datetime.now() - timedelta(minutes=10):
             if 'Busy' in line:
                 file = open ('newfile.txt' , 'w')
                 file.write(line)
                 file.close()

我仍然无法创建文件并插入数据，我在这里想念什么？

Answer 1

您可以使用w继续覆盖，使用a可以在循环外追加或打开。

with open('access.log') as f, open ('newfile.txt' , 'w') as file:
    for line in f:
         logdate = datetime.strptime(line.split(',')[0], '%Y-%m-%d %H:%M:%S')
         if logdate >= datetime.now() - timedelta(minutes=10) and 'Busy' in line:
                 file.write(line)